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x:18=0.51.8:x=13x:20=4:5x8=3716x+23x=14134x−20=2934x÷25=544x+5x=811x+23x=10934x+20=50

题目详情
x:18=0.5                1.8:x=
1
3
                   
x:20=4:5              
x
8
3
7
1
6
x+
2
3
x=
1
4
               
1
3
4
x−20=29                  
3
4
2
5
5
4
             
4x+5x=
8
11
             
x+
2
3
x=
10
9
              
3
4
x+20=50                   
x-
1
10
x=
3
4
              
1
2
x−
1
4
7
8
x:18=0.5                1.8:x=
1
3
                   
x:20=4:5              
x
8
3
7
1
6
x+
2
3
x=
1
4
               
1
3
4
x−20=29                  
3
4
2
5
5
4
             
4x+5x=
8
11
             
x+
2
3
x=
10
9
              
3
4
x+20=50                   
x-
1
10
x=
3
4
              
1
2
x−
1
4
7
8
x:18=0.5                1.8:x=
1
3
                   
x:20=4:5              x:18=0.5               1.8:x=
1
3
                   
1
3
                   
1
3
1133x:20=4:5              
x
8
3
7
1
6
x+
2
3
x=
1
4
               
1
3
4
x−20=29                  
x
8
3
7
x
8
3
7
x
8
xx88
3
7
3377
1
6
x+
2
3
x=
1
4
               
1
6
x+
2
3
x=
1
4
               
1
6
1166
2
3
2233
1
4
11441
3
4
x−20=29                  
1
3
4
x−20=29                  
3
4
3344
3
4
2
5
5
4
             
4x+5x=
8
11
             
x+
2
3
x=
10
9
              
3
4
2
5
5
4
             
3
4
2
5
5
4
             
3
4
3344
2
5
2255
5
4
55444x+5x=
8
11
             
4x+5x=
8
11
             
8
11
881111x+
2
3
x=
10
9
              
2
3
x=
10
9
              
2
3
2233
10
9
101099
3
4
x+20=50                   
x-
1
10
x=
3
4
              
1
2
x−
1
4
7
8
3
4
x+20=50                   
3
4
x+20=50                   
3
4
3344x-
1
10
x=
3
4
              
1
10
x=
3
4
              
1
10
111010
3
4
3344
1
2
x−
1
4
7
8
1
2
x−
1
4
7
8
1
2
1122
1
4
1144
7
8
7788
▼优质解答
答案和解析
x:18=0.5,x=0.5×18,x=9; 1.8:x=13 x=1.8÷13,x=5.4; x:20=4:5 5x=20×45x÷5=80÷5x=16; x8=377x=3×8,7x÷7=24÷7,    x=247 16x+23x=14 (16+23)x=1456x÷56=14÷56 ...